Modelling and optimization studies on extraction of lemongrass oil from Cymbopogon flexuosus (Steud.) Wats
Modelling and optimization studies on extraction of lemongrass oil from Cymbopogon flexuosus (Steud.) Wats
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DOI：
10.1016/j.cherd.2013.08.011
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发表时间：
2014-05-01
影响因子：
3.9
通讯作者：
De, Achyut Kumar
中科院分区：
文献类型：
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作者：
Desai, Meghal A.;Parikh, Jigisha;De, Achyut Kumar
本研究的目的是进行建模以及优化研究的提取精油从柠檬草叶水蒸馏。基于分配热力学和动力学解吸模型进行了研究，以了解萃取行为。该过程被认为是由初始解吸步骤，描述了两个网站的动力学解吸模型的影响。采用田口法，确定了最佳提取工艺条件为：料水比1：14（w/w），原料粒度25 mm，提取时间1.5h，功率500 W。固水比被认为是最显着的影响因素的过程。对挥发油进行了定性分析，在优化条件下，柠檬醛的含量最高，为83.24%。所得结果可为更大规模的研究提供依据。(C)2013化学工程师学会。Elsevier B. V.出版，保留所有权利。
The present study was intended to perform modelling as well as optimization studies for the extraction of essential oil from the leaves of lemongrass by hydro distillation. The models based on partitioning thermodynamics and kinetic desorption were studied to understand the extraction behaviour. The process was found to be influenced by the initial desorption step, described by the two-site kinetic desorption model. The optimum conditions, using the Taguchi method, were obtained as: 1:14 (w/w) solid to water ratio, 25 mm size of the plant material, extraction time of 1.5 h and 500W power. Solid to water ratio was found to be the most significant factor influencing the process. Moreover, qualitative analysis of essential oil was performed and the maximum amount of citral (83.24%) was obtained under optimized condition. The results obtained could provide a basis for higher scale study. (C) 2013 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.